Sari, D.R., Hasanah, D., Rambe, A.K. and Mukra, M. 2024. Studi Literatur: Analisis Penerapan Model Pembelajaran Problem Based Learning Dalam Meningkatkan Kemampuan Berpikir Kritis Pada Materi Perncemaran Lingkungan Kelas X SMA Methodist Lubuk Pakam : (Literature Study: Analysis of the Application of the Problem Based Learning Model in Improving Critical Thinking Abilities on Environmental Pollution Material for Class X Lubuk Pakam Methodist High School) . BIODIK. 10, 2 (Jun. 2024), 111-120. DOI:https://doi.org/10.22437/biodik.v10i2.33828.